We have always noticed the following error in MOM - indicating an LDAP Search Time Critical Error on our HUB/CAS Servers... the MS range is anywhere from 111ms up to over 400ms... yet if I do a constant PING from both CAS servers... and leave them running all day long, I see no more than 1-2ms response.. and a 1ms total average over a 24 hour period.
Is this just a MOM issue reading these settings incorrectly? We have another site in Australia, which when I see their alerts, they do see the same LDAP Critical error... yet the expected test results are all the same.
I don't really think there is any negative network performance or system performance based on these errors... but I just want to be proactive and make sure there isn't something I am missing.. or if there is something I can tweak to help prevent these problems from coming up.
2 x 2008 Enterprise x64 Bit, Exchange 07 CAS/HUB Servers. 1 NLB NIC, 1 Outbound Mail NIC
2 x 2008 Enterprise x64 Bit, Exchange 07 Mailbox Servers (Clustered) 1 Public NIC, 1 Heartbeat NIC
Severity: Critical Error
Source: MSExchange ADAccess Domain Controllers: LDAP Search Time: server.domain.com
Name: LDAP Search Time - sustained for 5 minutes - Red(>100msec).
MSExchange ADAccess Domain Controllers: LDAP Search Time: server.domain.com value = 114.473333333334
Knowledge base article for this alert:
. The average over last 5 samples is 114.473.
Time: 12/1/2009 04:31:00